Mapping the upper mantle structure beneath the South Atlantic and the adjacent continents using full waveform tomography with geodynamic interpretations of hotspot flux and material transport in the asthenosphere.

使用全波形断层扫描绘制南大西洋和邻近大陆下方的上地幔结构图,并对软流圈中的热点通量和物质传输进行地球动力学解释。

基本信息

项目摘要

We propose to combine full waveform tomography and geodynamic forward modelling to address key questions concerning the geodynamics and evolution of the South Atlantic region: (1) How and to which extent does the South Atlantic plume system feed the asthenosphere in the oceanic basin and adjacent regions? (2) What are the current thermal states of the Walvis Ridge and the Etendeka and Paraná continental flood basalt? (3) What, if any, is the pathway of slow seismic material from the upper to the lower mantle? (4) Is the prominent topographic gradient across the South Atlantic region from Africa to South America explicable solely in terms of lower mantle structure, or do we also find a systematic gradient in upper mantle heterogeneity across the ocean basin? (5) What is the relation of upper mantle heterogeneity and anisotropic structure to the Mid-Atlantic ridge system and hotspots? The use of full waveform tomography will allow us to exploit as much information as possible from seismograms. Our approach is thus well suited for regions with comparatively low data coverage such as the South Atlantic. Mineral physics models will allow us to infer dynamically important constraints on lateral temperature variations in a thermodynamically self-consistent way from the seismic observations. Observations of seismic anisotropy and geodynamic modelling will help us to further quantify and substantiate our inferences on the thermal state and material flux in the South Atlantic upper mantle.
我们建议将全波形层析成像和地球动力学正演模拟结合起来,以解决有关南大西洋地区地球动力学和演化的关键问题:(1)南大西洋羽流系统如何以及在多大程度上为大洋盆地和邻近地区的软流层提供供给?(2)沃尔维斯脊、埃滕代卡和准大陆溢流玄武岩目前的热状态是什么?(3)慢地震物质从上地幔到下地幔的路径是什么?(4)南大西洋地区从非洲到南美洲的显著地形梯度仅从下地幔结构来看是可以解释的,(5)上地幔非均质性和各向异性结构与中大西洋海脊系统和热点有何关系?全波形层析成像的使用将使我们能够从地震记录中尽可能多地利用信息。因此,我们的方法非常适合于数据覆盖率相对较低的地区,如南大西洋。矿物物理模型将使我们能够从地震观测中以热力学自洽的方式动态地推断横向温度变化的重要制约因素。地震各向异性的观测和地球动力学模拟将有助于我们进一步量化和证实我们对南大西洋上地幔的热状态和物质通量的推断。

项目成果

期刊论文数量(0)
专著数量(0)
科研奖励数量(0)
会议论文数量(0)
专利数量(0)

数据更新时间:{{ journalArticles.updateTime }}

{{ item.title }}
{{ item.translation_title }}
  • DOI:
    {{ item.doi }}
  • 发表时间:
    {{ item.publish_year }}
  • 期刊:
  • 影响因子:
    {{ item.factor }}
  • 作者:
    {{ item.authors }}
  • 通讯作者:
    {{ item.author }}

数据更新时间:{{ journalArticles.updateTime }}

{{ item.title }}
  • 作者:
    {{ item.author }}

数据更新时间:{{ monograph.updateTime }}

{{ item.title }}
  • 作者:
    {{ item.author }}

数据更新时间:{{ sciAawards.updateTime }}

{{ item.title }}
  • 作者:
    {{ item.author }}

数据更新时间:{{ conferencePapers.updateTime }}

{{ item.title }}
  • 作者:
    {{ item.author }}

数据更新时间:{{ patent.updateTime }}

Professor Dr. Hans-Peter Bunge, Ph.D.其他文献

Professor Dr. Hans-Peter Bunge, Ph.D.的其他文献

{{ item.title }}
{{ item.translation_title }}
  • DOI:
    {{ item.doi }}
  • 发表时间:
    {{ item.publish_year }}
  • 期刊:
  • 影响因子:
    {{ item.factor }}
  • 作者:
    {{ item.authors }}
  • 通讯作者:
    {{ item.author }}

{{ truncateString('Professor Dr. Hans-Peter Bunge, Ph.D.', 18)}}的其他基金

Retrodiction Range of geodynamic earth models from twin experiments that account for model inconsistencies and limited resolution of present-day heterogeneity
来自孪生实验的地球动力学地球模型的回顾范围,解释了模型不一致和当今异质性的有限分辨率
  • 批准号:
    412338397
  • 财政年份:
    2019
  • 资助金额:
    --
  • 项目类别:
    Research Grants
Feasibility study to identify deep Earth signals in current and future gravity field missions
在当前和未来重力场任务中识别地球深部信号的可行性研究
  • 批准号:
    323625017
  • 财政年份:
    2016
  • 资助金额:
    --
  • 项目类别:
    Research Grants
Determination of current geoid trends related to deep Earth processes in the South Atlantic region
确定与南大西洋地区地球深层过程相关的当前大地水准面趋势
  • 批准号:
    243973216
  • 财政年份:
    2013
  • 资助金额:
    --
  • 项目类别:
    Priority Programmes
TERRA-NEO - Integrated Co-Design of an Exascale Earth Mantle Modeling Framework
TERRA-NEO - 百亿亿次地幔建模框架的集成协同设计
  • 批准号:
    230862710
  • 财政年份:
    2012
  • 资助金额:
    --
  • 项目类别:
    Priority Programmes
Seismic waveform tomography on continental scales based on the spectral-element and adjoint methods
基于谱元和伴随方法的大陆尺度地震波形层析成像
  • 批准号:
    73582572
  • 财政年份:
    2009
  • 资助金额:
    --
  • 项目类别:
    Research Grants
Program management and scientific networking
项目管理和科学网络
  • 批准号:
    80299618
  • 财政年份:
    2009
  • 资助金额:
    --
  • 项目类别:
    Priority Programmes
Mineralogical and Dynamic Origin of the South African Superplume
南非超羽流的矿物学和动态起源
  • 批准号:
    79644183
  • 财政年份:
    2008
  • 资助金额:
    --
  • 项目类别:
    Priority Programmes
Exploring plate tectonic force balances and plate boundary forces in the South Atlantic from plate motion histories and coupled global and regional geodynamic models
从板块运动历史和耦合的全球和区域地球动力学模型探索南大西洋的板块构造力平衡和板块边界力
  • 批准号:
    80283908
  • 财政年份:
    2008
  • 资助金额:
    --
  • 项目类别:
    Priority Programmes
Geodynamic models with thermodynamically self-consistent mineral physics
具有热力学自洽矿物物理的地球动力学模型
  • 批准号:
    41509765
  • 财政年份:
    2007
  • 资助金额:
    --
  • 项目类别:
    Research Grants
Forward modelling of mantle density anomalies from geodynamic considerations
从地球动力学角度考虑地幔密度异常的正演模型
  • 批准号:
    30265607
  • 财政年份:
    2006
  • 资助金额:
    --
  • 项目类别:
    Priority Programmes

相似海外基金

Mapping variability in the thermo-mechanical structure of the North American Plate and upper mantle
绘制北美板块和上地幔热力结构的变异性
  • 批准号:
    1736165
  • 财政年份:
    2017
  • 资助金额:
    --
  • 项目类别:
    Standard Grant
Mapping fluid composition in the upper mantle based on fluid geometry
基于流体几何绘制上地幔中的流体成分
  • 批准号:
    16K13903
  • 财政年份:
    2016
  • 资助金额:
    --
  • 项目类别:
    Grant-in-Aid for Challenging Exploratory Research
Mapping elastic and anelastic structure in the global upper mantle
绘制全球上地幔的弹性和非弹性结构图
  • 批准号:
    1013617
  • 财政年份:
    2010
  • 资助金额:
    --
  • 项目类别:
    Standard Grant
Collaborative Research: Mapping upper-mantle anisotropy in the western US: Constraints on crust-mantle coupling
合作研究:绘制美国西部上地幔各向异性图:壳幔耦合的约束
  • 批准号:
    0545016
  • 财政年份:
    2006
  • 资助金额:
    --
  • 项目类别:
    Standard Grant
Collaborative Research: Mapping Upper-Mantle Anisotropy in Western U.S.: Constraints on Crust-Mantle Coupling
合作研究:绘制美国西部上地幔各向异性图:对壳幔耦合的限制
  • 批准号:
    0545777
  • 财政年份:
    2006
  • 资助金额:
    --
  • 项目类别:
    Standard Grant
CSEDI: Collaborative Res: Toward Mapping 3D Variations in Temperature and Chemical Composition in the Upper Mantle through a Mineral Physics-Based Inversion of Seismic Waveforms
CSEDI:协作研究:通过基于矿物物理的地震波形反演绘制上地幔温度和化学成分的 3D 变化
  • 批准号:
    0112409
  • 财政年份:
    2001
  • 资助金额:
    --
  • 项目类别:
    Standard Grant
CSEDI: Collaborative Res.: Toward Mapping 3D Variations in Temperature and Chemical Composition in the Upper Mantle through a Mineral Physics-based Inversion of Seismic Waveforms
CSEDI:协作研究:通过基于矿物物理的地震波形反演绘制上地幔温度和化学成分的 3D 变化
  • 批准号:
    0111824
  • 财政年份:
    2001
  • 资助金额:
    --
  • 项目类别:
    Standard Grant
3-D Mapping of Attenuation in the Upper Mantle
上地幔衰减的 3-D 绘图
  • 批准号:
    9405927
  • 财政年份:
    1994
  • 资助金额:
    --
  • 项目类别:
    Continuing Grant
3-D Mapping of Attenuation in the Upper Mantle Using Mantle Waves
使用地幔波绘制上地幔衰减的 3D 绘图
  • 批准号:
    9204631
  • 财政年份:
    1992
  • 资助金额:
    --
  • 项目类别:
    Continuing Grant
3-D Mapping of Attenuation in the Upper Mantle Using Mantle Waves
使用地幔波绘制上地幔衰减的 3D 绘图
  • 批准号:
    9104674
  • 财政年份:
    1991
  • 资助金额:
    --
  • 项目类别:
    Standard Grant
{{ showInfoDetail.title }}

作者:{{ showInfoDetail.author }}

知道了